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TLS Online TPP Program

#Question id: 3864

RNA polymerase:

#Unit 3. Fundamental Processes

  1. binds tightly to a region of DNA thousands of base pairs away from the DNA to be transcribed.

  2. can synthesize RNA chains de novo (without a primer).

  3. has a subunit called lambda, which acts as a proofreading ribonuclease.

  4. separates DNA strands throughout a long region of DNA (up to thousands of base pairs), then copies one of them.

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TLS Online TPP Program

#Question id: 19885

#Unit 13. Methods in Biology

The plasmid used by Cohen and Boyer fr their transformation experiment was
TLS Online TPP Program

#Question id: 6944

#Unit 5. Developmental Biology

Which would lead to a dorsalized embryo? (Recall that genes in Drosophila are named for their mutant phenotype.
TLS Online TPP Program

#Question id: 545

#Unit 1. Molecules and their Interaction Relevant to Biology

Which one of the following is not among the six internationally accepted classes of enzymes?
TLS Online TPP Program

#Question id: 12591

#Unit 10. Ecological Principles

A community's actual evapotranspiration is a reflection of
TLS Online TPP Program

#Question id: 10970

#Unit 7. System Physiology – Animal

A mother of blood type A+ who has always been perfectly healthy just delivered her second child. The father is of blood group O−. Knowing that the child is of blood group O− (O, Rh−), what would you expect to find in this child?